BGS mineralogy and petrology collection record

Sample number E8388; MR8048;
Sample Donor Butler,A.J.
Rock name 'Original entry: Quartz Diorite Porphyrite'
Stratigraphy Not entered
Comments Probably hybrid granophyre base
Locality details Pen y Copa Lleyn Peninsula
50k map sheet Pwllheli (134)

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Map reference SH 223 317
Year collected Not entered 
Bore name Not applicable
Confidentiality No restrictions

Petrological thin sections

Links to high resolution images

Transition from XPL to PPL light


E8388

Cross Polarized, E8388

Plane Polarized, E8388

Plane Polarized, E8388